Please test the code before you use on anything that goes live and please let me know if you find any problems.
{% if subscriber.tags contains "BT-CHOL-high" %}your cholesterol level is higher than normal{% elsif subscriber.tags contains "BT-VITD-insufficient" %}your vitamin D level is lower than normal{% elsif subscriber.tags contains "BT-CHOL+VITD-insufficient" %}Your vitamin D level is lower than normal{% endif %}